add cleanup for old model revisions and remove tmp state

[lpereiracgn]

Only for testing purposes. Not to be reviewed.

[codecov]

Codecov Report

Attention: Patch coverage is 61.65414% with 51 lines in your changes missing coverage. Please review.

Project coverage is 70.96%. Comparing base (800ef10) to head (640f8dd).

Files with missing lines	Patch %	Lines
Cognite.Simulator.Utils/ModelLibraryBase.cs	63.20%	38 Missing and 1 partial ⚠️
...ulator.Utils/DefaultClasses/DefaultModelLibrary.cs	16.66%	5 Missing ⚠️
Cognite.Simulator.Utils/Configuration.cs	20.00%	3 Missing and 1 partial ⚠️
Cognite.Simulator.Utils/FileState.cs	81.25%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #241      +/-   ##
==========================================
- Coverage   71.83%   70.96%   -0.87%     
==========================================
  Files          33       33              
  Lines        3554     3627      +73     
  Branches      422      434      +12     
==========================================
+ Hits         2553     2574      +21     
- Misses        844      896      +52     
  Partials      157      157              

Files with missing lines	Coverage Δ
Cognite.Simulator.Utils/SimulationRunnerBase.cs	72.56% <ø> (-0.10%)	⬇️
Cognite.Simulator.Utils/FileState.cs	86.39% <81.25%> (-0.63%)	⬇️
Cognite.Simulator.Utils/Configuration.cs	70.73% <20.00%> (-1.43%)	⬇️
...ulator.Utils/DefaultClasses/DefaultModelLibrary.cs	29.72% <16.66%> (+0.31%)	⬆️
Cognite.Simulator.Utils/ModelLibraryBase.cs	70.73% <63.20%> (-4.45%)	⬇️

... and 1 file with indirect coverage changes

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